#include <stdio.h>
void my_memcpy(void *dest,void *src,size_t num)
{
    void *ret=dest;
    assert(dest&&src);
    while(num--)
    {
        *(char*)dest=*(char*)src;
        dest=(char*)dest+1;
        src=(char*)src+1;
    }
    return ret;
}
int main ()
{
   
   return(0);
}